Process for rendering metals corrosion resistant

Details Process for rendering metals corrosion resistant Process for rendering metals corrosion resistant

C - Chemistry, Metallurgy

23

C

C23C 8/14 (2006.01) C07C 273/04 (2006.01) C22C 38/00 (2006.01) C22C 38/08 (2006.01) C22C 38/12 (2006.01) C22C 38/44 (2006.01) C23C 8/18 (2006.01) C23C 8/40 (2006.01)

Patent

CA 2457200

Process for rendering metals corrosion resistant by treating them with an anti- corrosion agent, wherein a ferritic-austenitic duplex steel having a chromium content of between 28 and 35 wt.% and a nickel content of between 3 and 10 wt.% is utilized, with an oxidizer being brought into contact with the metal parts and with the passivating air being completely or partly omitted.

L'invention concerne un procédé permettant de rendre des métaux résistants à la corrosion au moyen d'un traitement avec un agent anticorrosion, un acier duplex ferritique-austénitique présentant un contenu de chrome compris entre 28 et 35% en poids et un contenu de nickel compris entre 3 et 10% en poids étant utilisé, un oxydant étant mis en contact avec les parties métalliques, et l'air de passivation étant complètement ou partiellement omis.

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